custom startup helps you to manage programs that are stared when windows starts, without need to edit registry or win.ini file manually. moreover, custom startup allows you to backup configurations and restore them latter, which is useful when you want to test several startup configurations or use different start-up profiles depending on how you are going to use your pc. since version 3.00, custom startup comes with csregalarm, a utility that monitors your registry start-up configuration and allows you to choose which changes will you accept and which will you reject. this may be also useful in protection from some types of viruses.